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【简答题】
已知椭圆C: ,左焦点为 F 1 , 上顶点为 B 2 (1)写出椭圆的顶点坐标和焦点坐标 (2)求直线 F 1 B 2 的一般式 (3)若椭圆C的顶点是双曲线E的焦点,双曲线E的顶点是椭圆C的焦点,求双曲线的标准方程。
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Applying an entity’s current accounting policy to a transaction which an entity has not engaged in before
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